4205240101 has 2 divisors, whose sum is σ = 4205240102. Its totient is φ = 4205240100.

The previous prime is 4205240099. The next prime is 4205240107. The reversal of 4205240101 is 1010425024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2934388900 + 1270851201 = 54170^2 + 35649^2 .

It is a cyclic number.

It is not a de Polignac number, because 4205240101 - 2¹ = 4205240099 is a prime.

Together with 4205240099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4205240107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2102620050 + 2102620051.

It is an arithmetic number, because the mean of its divisors is an integer number (2102620051).

Almost surely, 2^4205240101 is an apocalyptic number.

It is an amenable number.

4205240101 is a deficient number, since it is larger than the sum of its proper divisors (1).

4205240101 is an equidigital number, since it uses as much as digits as its factorization.

4205240101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4205240101 is about 64847.8226388520. The cubic root of 4205240101 is about 1614.0993615339.

Adding to 4205240101 its reverse (1010425024), we get a palindrome (5215665125).

The spelling of 4205240101 in words is "four billion, two hundred five million, two hundred forty thousand, one hundred one".